I read a web comic called Kevin and Kell.
It's about a Rabbit who's married to a Wolf.
The whole family is kinda fraked up.
Kell's brother (she's the wolf) got it on with a sheep and they had a daughter who looks like a sheep but has Wolf tendancies (she's dating another Wolf)
Kell's first husband was a red fox (he died when a Moost stepped on him). She has a son from that marriage.
Kevin and Kell have a rabbit/wolf daughter. She looks like a rabbit but acts like a wolf (she eats everything!
)
They have an adopted daughter who's a Hedgehog (Lindsfarn's BF is a bat! )
Rudy (the wolf/fox) has a GF named Fiona. She's a red fox/fennec (an African Fox like species).
Fiona's father is married to Kevin's sister. And they're expecting their first child. So there'll soon be a Fennec/Rabbit mix.
http://www.kevinandkell.com/index.html
Sea World has a couple Wolfins (half Whale/half Dolphin). They thought their first Wolfin was sterile but she had a baby with a normal Dolphin.
I have also read about Zeedonks/Zonkzys which are the sterile offspring of a Zebra and Donkey.
Not to mention all the Ligers and Tigons there are in zoo's.